Abstract
Introduction: Foramen ovale & Foramen spinosum are important foramina present at the junction of body & greater wing of sphenoid connecting the middle cranial fossa with the infratemporal fossa transmitting many important structures. Variations are commonly seen in dimensions of foramen ovale, which is commonly used in different diagnostic and therapeutic procedures. Objectives: Objective of this study was to measure the length & width of the foramen ovale, observe the variations of foramen ovale & foramen spinosum. Materials and Methods: A morphometric study was conducted on foramen ovale and spinosum in the dept of Anatomy, Medical College Kolkata. 36 human skulls and 2 sphenoids were subjected to me asurement using digital caliper, length & width of fo ramen ovale were measured and the variations of foramen spinosum were noted. The findings so obtained were compared to similar studies done in past by different authors. Results: The mean length of foramen ovale on right & left side was 7.17 1.31mm and 7.26 1.91mm and mean width of foramen ovale on right & left side was 3.49 0.54 mm and 3.73 0.83 mm. Foramen ovale was commonly oval in shape in 53.94% cases followed by round and almond in shape in 21.05% each, least common type was D-shaped in 3.94% cases. In 1 among 78 cases there was unilateral foramen spinosum. Conclusion: Knowledge regarding variations of foramen ovale & foramen spinosum will help the clinicians as the foramen ovale is commonly used in different neurosurgical procedures and will also help the anatomists on the developmental background. Keywords: Morphometry, Foramen Ovale, Spicule, Foramen spinosum.
Highlights
Foramen ovale & Foramen spinosum are important foramina present at the junction of body & greater wing of sphenoid connecting the middle cranial fossa with the infratemporal fossa transmitting many important structures
To the foramen rotundum is foramen ovale, which is largest among all the foramina present in middle cranial fossa and transmits mandibular division of trigeminal nerve along wit h accessory meningeal branch of maxillary artery, lesser petrosal nerve and an emissary vein connecting the pterygoid venous plexus in the infratemporal fossa to the cavernous sinus. 1
A morphometric study was conducted on foramen ovale and foramen spinosu m in the department of Anatomy, Medical college Kolkata
Summary
Foramen ovale & Foramen spinosum are important foramina present at the junction of body & greater wing of sphenoid connecting the middle cranial fossa with the infratemporal fossa transmitting many important structures. In middle cranial fossa there are 3 such foramina which are persistently present at the junction of body and greater wing of sphenoid-foramen rotundum, for amen ovale, foramen spinosum. Because their clinical implications are more, so we studied the foramen ovale and foramen spinosum on morphometric ground on 76 cases. Ossification of sphenoid starts from its greater wing (alisphenoid) in membranous centre and during ossification foramen ovale develops surrounding the mandibular nerve
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